Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7585587 | Food Chemistry | 2018 | 33 Pages |
Abstract
Flavonoids are important compounds for grape and wine quality. Foliar fertilization with iron compounds has been reported to have a substantial impact on grape composition in the grapevines growing in calcareous soil. However, much less is known about its real impact on flavonoid composition. In the present study, Ferric ethylenediamine di (O-hydroxyphenylacetic) acid (Fe-EDDHA) was foliar applied to Merlot (Vitis vinifera L.) grapevines growing in calcareous soil over two consecutive vintages in order to study its effect on grape flavonoid composition. Fe-EDDHA foliar supply tended to increase grape sugar, anthocyanin and flavonol content, decrease acid content and enhance the juice pH when compared to the control. Principal component analysis showed that the vintage also had influence on grape quality. The results suggested that Fe-EDDHA foliar application had an enhancement effect on grape secondary metabolism, and the effect increased the nutritional value of the consequent grapes and wines.
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Pengbao Shi, Changzheng Song, Haiju Chen, Bingbing Duan, Zhenwen Zhang, Jiangfei Meng,